Okay, my idea of a really bad job: Well, I found many other photographs but all were too large. This is a rather poignant picture. Nothing wrong with shining shoes but I wouldn't want to do it:
would like to see a picture of a rainbow on a rainy day.

Find me a pic where you think it's one thing but, when you look at it closely, it's something else.

OK - had two thoughts on this one (see attachments). The first, my favorite optical illusion (you might need to click and enlarge to see the woman sitting at her vanity as opposed to the skull) The second - no explanation necessary, but I also think it fits the bill .